:root {
    --bg-color: #f5f5f7; /* Apple light gray background */
    --sidebar-bg: rgba(255, 255, 255, 0.8);
    --primary-color: #0071e3; /* Apple Blue */
    --danger-color: #ff3b30; /* Apple Red */
    --border-color: #d2d2d7;
    --text-color: #1d1d1f;
    --text-muted: #86868b;
    --tool-bg: #ffffff;
    --tool-hover: #f5f5f7;
    --tool-active-bg: #0071e3;
    --tool-active-text: #ffffff;
    --shadow-color: rgba(0,0,0,0.1);
    --radius: 12px;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] {
    --bg-color: #000000;
    --sidebar-bg: #1c1c1e;
    --primary-color: #0a84ff;
    --danger-color: #ff453a;
    --border-color: #38383a;
    --text-color: #f5f5f7;
    --text-muted: #86868b;
    --tool-bg: #2c2c2e;
    --tool-hover: #3a3a3c;
    --tool-active-bg: #0a84ff;
    --tool-active-text: #ffffff;
    --shadow-color: rgba(0,0,0,0.5);
    --glass-bg: rgba(28, 28, 30, 0.7);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
    -webkit-font-smoothing: antialiased;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: 320px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10;
}

.section {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
}

.section:last-child {
    border-bottom: none;
}

h2 {
    margin-bottom: 20px;
    color: var(--text-color);
    font-weight: 600;
}

.brand-header {
    text-align: center;
    margin-bottom: 10px;
    padding-bottom: 15px;
    border-bottom: none;
    position: relative;
}

.brand-header h1 {
    color: var(--text-color);
    font-size: 1.8rem;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
    text-transform: none;
    font-weight: 700;
}

.brand-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 400;
}

.brand-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.brand-footer strong {
    color: var(--text-color);
}

h3 {
    font-size: 0.8rem;
    margin-bottom: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid transparent; /* Cleaner look */
    background: var(--tool-bg);
    color: var(--text-color);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
    text-align: left;
    box-shadow: 0 1px 3px var(--shadow-color);
}

.tool-btn:hover {
    background-color: var(--tool-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px var(--shadow-color);
}

.tool-btn.active {
    background-color: var(--tool-active-bg);
    color: var(--tool-active-text);
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.color-box {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    display: inline-block;
    flex-shrink: 0;
    box-shadow: 0 0 0 1px rgba(0,0,0,0.1);
}

.icon {
    font-size: 1.1em;
}

/* Buttons */
button {
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
    width: 100%;
    margin-bottom: 8px;
    transition: all 0.2s;
    font-weight: 500;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #0077ed;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 113, 227, 0.3);
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #ff4f44;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 59, 48, 0.3);
}

input[type="file"] {
    width: 100%;
    margin-bottom: 12px;
    color: var(--text-color);
    font-size: 0.85rem;
}

input[type="file"]::file-selector-button {
    border: none;
    background: var(--tool-bg);
    padding: 8px 12px;
    border-radius: 8px;
    color: var(--text-color);
    cursor: pointer;
    margin-right: 10px;
    transition: background 0.2s;
    box-shadow: 0 1px 3px var(--shadow-color);
}

input[type="file"]::file-selector-button:hover {
    background: var(--tool-hover);
}

/* Canvas Area */
.canvas-container {
    flex: 1;
    display: flex;
    background-color: var(--bg-color);
    padding: 40px;
    overflow: auto;
    position: relative;
    transition: background-color 0.3s;
}

#canvas-wrapper {
    position: relative;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    background: white;
    min-width: 400px;
    min-height: 300px;
    margin: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    border-radius: 4px; /* Slight radius for the paper look */
}

#drawingCanvas {
    cursor: crosshair;
    display: block;
}

#placeholder-text {
    position: absolute;
    color: var(--text-muted);
    pointer-events: none;
    font-size: 1.2rem;
    font-weight: 500;
}

.loupe {
    position: absolute;
    width: 180px;
    height: 180px;
    border: 4px solid white;
    border-radius: 50%;
    overflow: hidden;
    pointer-events: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    background: white;
    z-index: 100;
    display: none;
}

.loupe canvas {
    display: block;
}

/* Theme Toggle */
.theme-toggle {
    position: absolute;
    top: 0;
    right: 0;
    width: 36px;
    height: 36px;
    background: transparent;
    color: var(--text-color);
    font-size: 1.1rem;
    padding: 0;
    margin: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--tool-hover);
}

/* Toasts */
#toast-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background-color: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: var(--text-color);
    padding: 14px 24px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-left: none; /* Remove colored border for cleaner look */
    border: 1px solid rgba(255,255,255,0.2);
    font-size: 0.9rem;
    font-weight: 500;
    animation: slideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 320px;
}

.toast.info { border-left: 4px solid var(--primary-color); }
.toast.error { border-left: 4px solid var(--danger-color); }
.toast.success { border-left: 4px solid #34c759; }

@keyframes slideIn {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Floating Input */
#floatingInputContainer {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 8px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    z-index: 500;
    display: flex;
    gap: 8px;
    border: var(--glass-border);
}

#floatingTextInput {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    outline: none;
    background: rgba(255,255,255,0.8);
    color: var(--text-color);
    font-size: 0.9rem;
    min-width: 200px;
}

#floatingTextInput:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.2);
}

.floating-actions button {
    width: 34px;
    height: 34px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    border-radius: 8px;
}

#floatingOkBtn {
    background-color: #34c759; /* Apple Green */
    color: white;
}

#floatingCancelBtn {
    background-color: var(--text-muted);
    color: white;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-box {
    background: var(--sidebar-bg);
    padding: 32px;
    border-radius: 18px;
    width: 420px;
    max-width: 90%;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    border: var(--glass-border);
}

.modal-box h3 {
    margin-top: 0;
    color: var(--text-color);
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.modal-box p {
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-actions button {
    width: auto;
    padding: 10px 20px;
    margin: 0;
}

/* Report Panel */
.report-panel {
    position: fixed;
    bottom: 20px;
    left: 340px; /* Sidebar width + 20px */
    right: 20px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    z-index: 100;
    max-height: 350px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.report-panel.collapsed {
    max-height: 56px;
    background: var(--sidebar-bg);
}

.report-panel.collapsed .report-content {
    opacity: 0;
    pointer-events: none;
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    cursor: pointer; /* Allow clicking header to toggle */
}

.report-header h3 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
    text-transform: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toggle-report-btn {
    background: rgba(0,0,0,0.05);
    border: none;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text-color);
    padding: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin: 0;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.report-panel.collapsed .toggle-report-btn {
    transform: rotate(-90deg);
}

.toggle-report-btn:hover {
    background: rgba(0,0,0,0.1);
}

.report-content {
    padding: 20px 24px;
    overflow-y: auto;
    transition: opacity 0.3s;
    opacity: 1;
}

.report-empty {
    color: var(--text-muted);
    text-align: center;
    font-style: normal;
    margin: 0;
    padding: 20px;
    background: rgba(0,0,0,0.02);
    border-radius: 8px;
}

.report-group {
    margin-bottom: 16px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

[data-theme="dark"] .report-group {
    background: #2c2c2e;
}

.report-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: transparent;
    border-left: 4px solid var(--primary-color);
    font-size: 0.95rem;
}

.report-item-label {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    font-weight: 500;
}

.report-item-icon {
    font-size: 1.2rem;
}

.report-item-value {
    font-weight: 600;
    color: var(--text-color);
    background: rgba(0,0,0,0.05);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.85rem;
}

.report-details {
    margin: 0;
    padding: 8px 16px 12px 16px;
    background: rgba(0,0,0,0.02);
    border-top: 1px solid rgba(0,0,0,0.05);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

.report-detail-item {
    padding: 6px 10px;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: white;
    border-radius: 6px;
    margin-bottom: 0;
    font-family: "SF Mono", "Menlo", monospace;
    border: 1px solid rgba(0,0,0,0.05);
    text-align: center;
}

[data-theme="dark"] .report-detail-item {
    background: #3a3a3c;
    border-color: rgba(255,255,255,0.1);
}

/* Specific Colors for Report Items */
.report-item.pvbn { border-left-color: #34c759; } /* Green */
.report-item.pv3p-routier { border-left-color: #30b0c7; } /* Cyan */
.report-item.pv3p-non-routier { border-left-color: #5ac8fa; } /* Light Blue */
.report-item.pv3p-maritime { border-left-color: #ff9500; } /* Orange */
.report-item.pv3p-fluvial { border-left-color: #ffcc00; } /* Yellow */
.report-item.pvrl { border-left-color: #af52de; } /* Purple */
.report-item.division { border-left-color: #ff3b30; } /* Red */
.report-item.borne { border-left-color: #ff2d55; } /* Pink */
.report-item.pv-ferroviaire { border-left-color: #5856d6; } /* Indigo */
.report-item.pv-controle { border-left-color: #34c759; } /* Green */